fix(email): use client/org name as From display, not Ladill product

Customer-facing outbound mail should appear from the business (organizer,
clinic, company, location), not the Ladill product brand.

app/Mail/ContactMessageMail.php

@@ -4,6 +4,7 @@ namespace App\Mail;
 
 use Illuminate\Bus\Queueable;
 use Illuminate\Mail\Mailable;
+use Illuminate\Mail\Mailables\Address;
 use Illuminate\Mail\Mailables\Content;
 use Illuminate\Mail\Mailables\Envelope;
 use Illuminate\Queue\SerializesModels;
@@ -23,7 +24,13 @@ class ContactMessageMail extends Mailable
 
     public function envelope(): Envelope
     {
+        $display = trim((string) ($this->fromName ?: $this->companyName));
+        $fromAddress = (string) config('mail.from.address');
+
         return new Envelope(
+            from: $display !== '' && $fromAddress !== ''
+                ? new Address($fromAddress, $display)
+                : null,
             subject: $this->subjectLine,
             replyTo: $this->replyToAddress ? [$this->replyToAddress] : [],
         );

app/Services/Comms/EmailService.php

@@ -27,9 +27,11 @@ class EmailService
             $logoUrl = OrganizationBranding::emailLogoUrl($organization);
             $companyName = $organization->name;
         }
+        // Client-facing From display: org/company name, never the Ladill product brand.
+        $displayName = trim((string) ($fromName ?: $companyName)) ?: null;
 
         try {
-            Mail::to($to)->send(new ContactMessageMail($subject, $body, $fromName, $replyTo, $logoUrl, $companyName));
+            Mail::to($to)->send(new ContactMessageMail($subject, $body, $displayName, $replyTo, $logoUrl, $companyName));
 
             return true;
         } catch (\Throwable $e) {

app/Services/Meet/MeetNotificationService.php

@@ -135,8 +135,11 @@ class MeetNotificationService
             ? $room->scheduled_at->timezone($room->timezone)->format('M j, Y g:i A T')
             : 'Instant meeting';
 
+        $orgName = trim((string) ($room->organization?->name ?? ''));
+        $sessionLabel = $orgName !== '' ? $orgName.' meeting' : 'video meeting';
+
         $lines = [
-            $host->name.' invited you to a Ladill Meet session.',
+            $host->name.' invited you to a '.$sessionLabel.'.',
             '',
             'Meeting: '.$room->title,
             'When: '.$when,